Submission #442503

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
442503	2021-07-08 04:59:49	izhang05	Race (IOI11_race)	C++17	100 / 100	927 ms	47096 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
using namespace std;
//#define DEBUG
const int maxn = 2e5 + 5, inf = 1e9;
vector<pair<int, int>> adj[maxn];
long long sol = inf, k, sub[maxn];
bool visited[maxn];
unordered_map<long long, long long> occ;
int find_centroid(int c, int p, long long s) {
    for (auto &i : adj[c]) {
        if (i.first != p && !visited[i.first] && sub[i.first] > s / 2) {
            return find_centroid(i.first, c, s);
        }
    }
    return c;
}
int find_size(int c, int p) {
    sub[c] = 1;
    for (auto &i : adj[c]) {
        if (i.first != p && !visited[i.first]) {
            sub[c] += find_size(i.first, c);
        }
    }
    return sub[c];
}
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57